Tycehurst Hill

The Project

Set in the epic grounds of this historic building located on the Southbank of the Thames, Crownstone were called in to diagnose and design the remedial repair works needed on this 19th century beauty. For the transformation of this elaborately decorated, once industrial, space into a modern mixed-use block of office, commercial and leisure space an innovative waterproofing system would need to be designed, protecting the property against the threat of water ingress, whilst still maintaining its original, mesmerising character.

Project Requirements

Built in 1815, this structure was suffering with complex damp issues and required a unique remedial programme that met the restrictions of its grade whilst also looking ahead to its new role as a mixed-use development. With part of the structure lying below ground, however, Crownstone had to design and specify a solution which would comply with British Standard BS8102.
First, we had to contend with the requirement for plant rooms to be housed in the below ground space, where the lack of an existing damp proof membrane meant that moisture evaporation into the basement was prevalent. This also complicated the client’s request for tiled floor finishes by providing us with an existing environment where the relevant adhesives would de-bond in a short space of time.
Secondly, exterior walls with eccentric profiles, ageing brickwork and decorative friezes all needed to be paid attention to, ensuring that the structural integrity of the building would be assured without compromising the fanciful terracotta friezes and elaborate brickwork which adorn it.

Year Guarantee
m2 treated

Our Solution

Using our uniquely collaborative approach, Crownstone instigated consultation with all stakeholders, ensuring that their wishes and requirements were met at each stage of the preservation process: translating a paper-based ideal into a real-world scenario.

Crownstone applied innovative chemical solutions which allowed the structure to breathe, and moisture to evaporate from the inside, whilst still protecting it from ingress from the elements.

By using ground-breaking drainage and damp-proof membrane technologies, installed to our own design specification, Crownstone maximised the dry and useable space of the property, ensuring that the correct grades of environmental dryness under BS8102 were achieved, protecting sensitive plant, equipment and decorative finishes against water damage with a guarantee of long-term performance.

The Result

Two months, a staggering two and a half thousand kilos of cement, numerous rolls of membrane, cannisters of chemical treatments and one very happy client later, the building is now guaranteed to be dry for the next 20 years.